How to use kenmore washer?

i just moved and my landlord has a kenmore elite washer.

my land lord told me to use the auto soak and pre wash to wash cloth. is that enough to clean clothes? cuz the pre wash sounds like a step before really wash the clothes. it also has a ultra clean mode after pre wash, do i need to use that?..

i tried to find a manual online but ends in no avail..